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Is MDC signalling allowable on MURS Radios?


I have read over many times GMRS, HAM, FRS, and MURS documents. I know MDC Signalling which is used on Motorola Products is prohibited from use on FRS and GMRS. I havent found anything on the Multi Use Radio Service (MURS) though saying you cannot use MDC 1200 (- or +) signalling on MURS un licensed freqs.

Of course certain restrictions apply like cannot exceed 2 watt output and no repeater, and no antenna exceeding 20 ft high. But does anyone here know for a fact, or work for the FCC  (so they can assure me), that MDC signalling is not allowed on the free VHF unlicensed MURS channels?

I am GMRS/HAM certified though planned to use a MURS channel for my small business within the store/property. I know it is also prohibited to run on carrier mode using MURS and DPL/PL must be used and not interferring with other users in area.

I know the factory 2watt Motorolas for MURS use a cheap chirp at end of transmission for user hearing. So basically, would the MDC signal tone (just for that purpose, not a PTT ID system) be legal or illegal to use on MURS?

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